sound/pci/ca0106/ca0106_proc.c

   1 /*
   2  *  Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
   3  *  Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
   4  *  Version: 0.0.18
   5  *
   6  *  FEATURES currently supported:
   7  *    See ca0106_main.c for features.
   8  *
   9  *  Changelog:
  10  *    Support interrupts per period.
  11  *    Removed noise from Center/LFE channel when in Analog mode.
  12  *    Rename and remove mixer controls.
  13  *  0.0.6
  14  *    Use separate card based DMA buffer for periods table list.
  15  *  0.0.7
  16  *    Change remove and rename ctrls into lists.
  17  *  0.0.8
  18  *    Try to fix capture sources.
  19  *  0.0.9
  20  *    Fix AC3 output.
  21  *    Enable S32_LE format support.
  22  *  0.0.10
  23  *    Enable playback 48000 and 96000 rates. (Rates other that these do not work, even with "plug:front".)
  24  *  0.0.11
  25  *    Add Model name recognition.
  26  *  0.0.12
  27  *    Correct interrupt timing. interrupt at end of period, instead of in the middle of a playback period.
  28  *    Remove redundent "voice" handling.
  29  *  0.0.13
  30  *    Single trigger call for multi channels.
  31  *  0.0.14
  32  *    Set limits based on what the sound card hardware can do.
  33  *    playback periods_min=2, periods_max=8
  34  *    capture hw constraints require period_size = n * 64 bytes.
  35  *    playback hw constraints require period_size = n * 64 bytes.
  36  *  0.0.15
  37  *    Separate ca0106.c into separate functional .c files.
  38  *  0.0.16
  39  *    Modified Copyright message.
  40  *  0.0.17
  41  *    Add iec958 file in proc file system to show status of SPDIF in.
  42  *  0.0.18
  43  *    Implement support for Line-in capture on SB Live 24bit.
  44  *
  45  *  This code was initally based on code from ALSA's emu10k1x.c which is:
  46  *  Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
  47  *
  48  *   This program is free software; you can redistribute it and/or modify
  49  *   it under the terms of the GNU General Public License as published by
  50  *   the Free Software Foundation; either version 2 of the License, or
  51  *   (at your option) any later version.
  52  *
  53  *   This program is distributed in the hope that it will be useful,
  54  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  55  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  56  *   GNU General Public License for more details.
  57  *
  58  *   You should have received a copy of the GNU General Public License
  59  *   along with this program; if not, write to the Free Software
  60  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  61  *
  62  */
  63 #include <sound/driver.h>
  64 #include <linux/delay.h>
  65 #include <linux/init.h>
  66 #include <linux/interrupt.h>
  67 #include <linux/slab.h>
  68 #include <linux/moduleparam.h>
  69 #include <sound/core.h>
  70 #include <sound/initval.h>
  71 #include <sound/pcm.h>
  72 #include <sound/ac97_codec.h>
  73 #include <sound/info.h>
  74 #include <sound/asoundef.h>
  75 #include <asm/io.h>
  76
  77 #include "ca0106.h"
  78
  79
  80 #ifdef CONFIG_PROC_FS
  81
  82 struct snd_ca0106_category_str {
  83         int val;
  84         const char *name;
  85 };
  86
  87 static struct snd_ca0106_category_str snd_ca0106_con_category[] = {
  88         { IEC958_AES1_CON_DAT, "DAT" },
  89         { IEC958_AES1_CON_VCR, "VCR" },
  90         { IEC958_AES1_CON_MICROPHONE, "microphone" },
  91         { IEC958_AES1_CON_SYNTHESIZER, "synthesizer" },
  92         { IEC958_AES1_CON_RATE_CONVERTER, "rate converter" },
  93         { IEC958_AES1_CON_MIXER, "mixer" },
  94         { IEC958_AES1_CON_SAMPLER, "sampler" },
  95         { IEC958_AES1_CON_PCM_CODER, "PCM coder" },
  96         { IEC958_AES1_CON_IEC908_CD, "CD" },
  97         { IEC958_AES1_CON_NON_IEC908_CD, "non-IEC908 CD" },
  98         { IEC958_AES1_CON_GENERAL, "general" },
  99 };
 100
 101
 102 static void snd_ca0106_proc_dump_iec958( struct snd_info_buffer *buffer, u32 value)
 103 {
 104         int i;
 105         u32 status[4];
 106         status[0] = value & 0xff;
 107         status[1] = (value >> 8) & 0xff;
 108         status[2] = (value >> 16)  & 0xff;
 109         status[3] = (value >> 24)  & 0xff;
 110
 111         if (! (status[0] & IEC958_AES0_PROFESSIONAL)) {
 112                 /* consumer */
 113                 snd_iprintf(buffer, "Mode: consumer\n");
 114                 snd_iprintf(buffer, "Data: ");
 115                 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 116                         snd_iprintf(buffer, "audio\n");
 117                 } else {
 118                         snd_iprintf(buffer, "non-audio\n");
 119                 }
 120                 snd_iprintf(buffer, "Rate: ");
 121                 switch (status[3] & IEC958_AES3_CON_FS) {
 122                 case IEC958_AES3_CON_FS_44100:
 123                         snd_iprintf(buffer, "44100 Hz\n");
 124                         break;
 125                 case IEC958_AES3_CON_FS_48000:
 126                         snd_iprintf(buffer, "48000 Hz\n");
 127                         break;
 128                 case IEC958_AES3_CON_FS_32000:
 129                         snd_iprintf(buffer, "32000 Hz\n");
 130                         break;
 131                 default:
 132                         snd_iprintf(buffer, "unknown\n");
 133                         break;
 134                 }
 135                 snd_iprintf(buffer, "Copyright: ");
 136                 if (status[0] & IEC958_AES0_CON_NOT_COPYRIGHT) {
 137                         snd_iprintf(buffer, "permitted\n");
 138                 } else {
 139                         snd_iprintf(buffer, "protected\n");
 140                 }
 141                 snd_iprintf(buffer, "Emphasis: ");
 142                 if ((status[0] & IEC958_AES0_CON_EMPHASIS) != IEC958_AES0_CON_EMPHASIS_5015) {
 143                         snd_iprintf(buffer, "none\n");
 144                 } else {
 145                         snd_iprintf(buffer, "50/15us\n");
 146                 }
 147                 snd_iprintf(buffer, "Category: ");
 148                 for (i = 0; i < ARRAY_SIZE(snd_ca0106_con_category); i++) {
 149                         if ((status[1] & IEC958_AES1_CON_CATEGORY) == snd_ca0106_con_category[i].val) {
 150                                 snd_iprintf(buffer, "%s\n", snd_ca0106_con_category[i].name);
 151                                 break;
 152                         }
 153                 }
 154                 if (i >= ARRAY_SIZE(snd_ca0106_con_category)) {
 155                         snd_iprintf(buffer, "unknown 0x%x\n", status[1] & IEC958_AES1_CON_CATEGORY);
 156                 }
 157                 snd_iprintf(buffer, "Original: ");
 158                 if (status[1] & IEC958_AES1_CON_ORIGINAL) {
 159                         snd_iprintf(buffer, "original\n");
 160                 } else {
 161                         snd_iprintf(buffer, "1st generation\n");
 162                 }
 163                 snd_iprintf(buffer, "Clock: ");
 164                 switch (status[3] & IEC958_AES3_CON_CLOCK) {
 165                 case IEC958_AES3_CON_CLOCK_1000PPM:
 166                         snd_iprintf(buffer, "1000 ppm\n");
 167                         break;
 168                 case IEC958_AES3_CON_CLOCK_50PPM:
 169                         snd_iprintf(buffer, "50 ppm\n");
 170                         break;
 171                 case IEC958_AES3_CON_CLOCK_VARIABLE:
 172                         snd_iprintf(buffer, "variable pitch\n");
 173                         break;
 174                 default:
 175                         snd_iprintf(buffer, "unknown\n");
 176                         break;
 177                 }
 178         } else {
 179                 snd_iprintf(buffer, "Mode: professional\n");
 180                 snd_iprintf(buffer, "Data: ");
 181                 if (!(status[0] & IEC958_AES0_NONAUDIO)) {
 182                         snd_iprintf(buffer, "audio\n");
 183                 } else {
 184                         snd_iprintf(buffer, "non-audio\n");
 185                 }
 186                 snd_iprintf(buffer, "Rate: ");
 187                 switch (status[0] & IEC958_AES0_PRO_FS) {
 188                 case IEC958_AES0_PRO_FS_44100:
 189                         snd_iprintf(buffer, "44100 Hz\n");
 190                         break;
 191                 case IEC958_AES0_PRO_FS_48000:
 192                         snd_iprintf(buffer, "48000 Hz\n");
 193                         break;
 194                 case IEC958_AES0_PRO_FS_32000:
 195                         snd_iprintf(buffer, "32000 Hz\n");
 196                         break;
 197                 default:
 198                         snd_iprintf(buffer, "unknown\n");
 199                         break;
 200                 }
 201                 snd_iprintf(buffer, "Rate Locked: ");
 202                 if (status[0] & IEC958_AES0_PRO_FREQ_UNLOCKED)
 203                         snd_iprintf(buffer, "no\n");
 204                 else
 205                         snd_iprintf(buffer, "yes\n");
 206                 snd_iprintf(buffer, "Emphasis: ");
 207                 switch (status[0] & IEC958_AES0_PRO_EMPHASIS) {
 208                 case IEC958_AES0_PRO_EMPHASIS_CCITT:
 209                         snd_iprintf(buffer, "CCITT J.17\n");
 210                         break;
 211                 case IEC958_AES0_PRO_EMPHASIS_NONE:
 212                         snd_iprintf(buffer, "none\n");
 213                         break;
 214                 case IEC958_AES0_PRO_EMPHASIS_5015:
 215                         snd_iprintf(buffer, "50/15us\n");
 216                         break;
 217                 case IEC958_AES0_PRO_EMPHASIS_NOTID:
 218                 default:
 219                         snd_iprintf(buffer, "unknown\n");
 220                         break;
 221                 }
 222                 snd_iprintf(buffer, "Stereophonic: ");
 223                 if ((status[1] & IEC958_AES1_PRO_MODE) == IEC958_AES1_PRO_MODE_STEREOPHONIC) {
 224                         snd_iprintf(buffer, "stereo\n");
 225                 } else {
 226                         snd_iprintf(buffer, "not indicated\n");
 227                 }
 228                 snd_iprintf(buffer, "Userbits: ");
 229                 switch (status[1] & IEC958_AES1_PRO_USERBITS) {
 230                 case IEC958_AES1_PRO_USERBITS_192:
 231                         snd_iprintf(buffer, "192bit\n");
 232                         break;
 233                 case IEC958_AES1_PRO_USERBITS_UDEF:
 234                         snd_iprintf(buffer, "user-defined\n");
 235                         break;
 236                 default:
 237                         snd_iprintf(buffer, "unkown\n");
 238                         break;
 239                 }
 240                 snd_iprintf(buffer, "Sample Bits: ");
 241                 switch (status[2] & IEC958_AES2_PRO_SBITS) {
 242                 case IEC958_AES2_PRO_SBITS_20:
 243                         snd_iprintf(buffer, "20 bit\n");
 244                         break;
 245                 case IEC958_AES2_PRO_SBITS_24:
 246                         snd_iprintf(buffer, "24 bit\n");
 247                         break;
 248                 case IEC958_AES2_PRO_SBITS_UDEF:
 249                         snd_iprintf(buffer, "user defined\n");
 250                         break;
 251                 default:
 252                         snd_iprintf(buffer, "unknown\n");
 253                         break;
 254                 }
 255                 snd_iprintf(buffer, "Word Length: ");
 256                 switch (status[2] & IEC958_AES2_PRO_WORDLEN) {
 257                 case IEC958_AES2_PRO_WORDLEN_22_18:
 258                         snd_iprintf(buffer, "22 bit or 18 bit\n");
 259                         break;
 260                 case IEC958_AES2_PRO_WORDLEN_23_19:
 261                         snd_iprintf(buffer, "23 bit or 19 bit\n");
 262                         break;
 263                 case IEC958_AES2_PRO_WORDLEN_24_20:
 264                         snd_iprintf(buffer, "24 bit or 20 bit\n");
 265                         break;
 266                 case IEC958_AES2_PRO_WORDLEN_20_16:
 267                         snd_iprintf(buffer, "20 bit or 16 bit\n");
 268                         break;
 269                 default:
 270                         snd_iprintf(buffer, "unknown\n");
 271                         break;
 272                 }
 273         }
 274 }
 275
 276 static void snd_ca0106_proc_iec958(struct snd_info_entry *entry,
 277                                        struct snd_info_buffer *buffer)
 278 {
 279         struct snd_ca0106 *emu = entry->private_data;
 280         u32 value;
 281
 282         value = snd_ca0106_ptr_read(emu, SAMPLE_RATE_TRACKER_STATUS, 0);
 283         snd_iprintf(buffer, "Status: %s, %s, %s\n",
 284                   (value & 0x100000) ? "Rate Locked" : "Not Rate Locked",
 285                   (value & 0x200000) ? "SPDIF Locked" : "No SPDIF Lock",
 286                   (value & 0x400000) ? "Audio Valid" : "No valid audio" );
 287         snd_iprintf(buffer, "Estimated sample rate: %u\n",
 288                   ((value & 0xfffff) * 48000) / 0x8000 );
 289         if (value & 0x200000) {
 290                 snd_iprintf(buffer, "IEC958/SPDIF input status:\n");
 291                 value = snd_ca0106_ptr_read(emu, SPDIF_INPUT_STATUS, 0);
 292                 snd_ca0106_proc_dump_iec958(buffer, value);
 293         }
 294
 295         snd_iprintf(buffer, "\n");
 296 }
 297
 298 static void snd_ca0106_proc_reg_write32(struct snd_info_entry *entry,
 299                                        struct snd_info_buffer *buffer)
 300 {
 301         struct snd_ca0106 *emu = entry->private_data;
 302         unsigned long flags;
 303         char line[64];
 304         u32 reg, val;
 305         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 306                 if (sscanf(line, "%x %x", &reg, &val) != 2)
 307                         continue;
 308                 if ((reg < 0x40) && (reg >=0) && (val <= 0xffffffff) ) {
 309                         spin_lock_irqsave(&emu->emu_lock, flags);
 310                         outl(val, emu->port + (reg & 0xfffffffc));
 311                         spin_unlock_irqrestore(&emu->emu_lock, flags);
 312                 }
 313         }
 314 }
 315
 316 static void snd_ca0106_proc_reg_read32(struct snd_info_entry *entry,
 317                                        struct snd_info_buffer *buffer)
 318 {
 319         struct snd_ca0106 *emu = entry->private_data;
 320         unsigned long value;
 321         unsigned long flags;
 322         int i;
 323         snd_iprintf(buffer, "Registers:\n\n");
 324         for(i = 0; i < 0x20; i+=4) {
 325                 spin_lock_irqsave(&emu->emu_lock, flags);
 326                 value = inl(emu->port + i);
 327                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 328                 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value);
 329         }
 330 }
 331
 332 static void snd_ca0106_proc_reg_read16(struct snd_info_entry *entry,
 333                                        struct snd_info_buffer *buffer)
 334 {
 335         struct snd_ca0106 *emu = entry->private_data;
 336         unsigned int value;
 337         unsigned long flags;
 338         int i;
 339         snd_iprintf(buffer, "Registers:\n\n");
 340         for(i = 0; i < 0x20; i+=2) {
 341                 spin_lock_irqsave(&emu->emu_lock, flags);
 342                 value = inw(emu->port + i);
 343                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 344                 snd_iprintf(buffer, "Register %02X: %04X\n", i, value);
 345         }
 346 }
 347
 348 static void snd_ca0106_proc_reg_read8(struct snd_info_entry *entry,
 349                                        struct snd_info_buffer *buffer)
 350 {
 351         struct snd_ca0106 *emu = entry->private_data;
 352         unsigned int value;
 353         unsigned long flags;
 354         int i;
 355         snd_iprintf(buffer, "Registers:\n\n");
 356         for(i = 0; i < 0x20; i+=1) {
 357                 spin_lock_irqsave(&emu->emu_lock, flags);
 358                 value = inb(emu->port + i);
 359                 spin_unlock_irqrestore(&emu->emu_lock, flags);
 360                 snd_iprintf(buffer, "Register %02X: %02X\n", i, value);
 361         }
 362 }
 363
 364 static void snd_ca0106_proc_reg_read1(struct snd_info_entry *entry,
 365                                        struct snd_info_buffer *buffer)
 366 {
 367         struct snd_ca0106 *emu = entry->private_data;
 368         unsigned long value;
 369         int i,j;
 370
 371         snd_iprintf(buffer, "Registers\n");
 372         for(i = 0; i < 0x40; i++) {
 373                 snd_iprintf(buffer, "%02X: ",i);
 374                 for (j = 0; j < 4; j++) {
 375                   value = snd_ca0106_ptr_read(emu, i, j);
 376                   snd_iprintf(buffer, "%08lX ", value);
 377                 }
 378                 snd_iprintf(buffer, "\n");
 379         }
 380 }
 381
 382 static void snd_ca0106_proc_reg_read2(struct snd_info_entry *entry,
 383                                        struct snd_info_buffer *buffer)
 384 {
 385         struct snd_ca0106 *emu = entry->private_data;
 386         unsigned long value;
 387         int i,j;
 388
 389         snd_iprintf(buffer, "Registers\n");
 390         for(i = 0x40; i < 0x80; i++) {
 391                 snd_iprintf(buffer, "%02X: ",i);
 392                 for (j = 0; j < 4; j++) {
 393                   value = snd_ca0106_ptr_read(emu, i, j);
 394                   snd_iprintf(buffer, "%08lX ", value);
 395                 }
 396                 snd_iprintf(buffer, "\n");
 397         }
 398 }
 399
 400 static void snd_ca0106_proc_reg_write(struct snd_info_entry *entry,
 401                                        struct snd_info_buffer *buffer)
 402 {
 403         struct snd_ca0106 *emu = entry->private_data;
 404         char line[64];
 405         unsigned int reg, channel_id , val;
 406         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 407                 if (sscanf(line, "%x %x %x", &reg, &channel_id, &val) != 3)
 408                         continue;
 409                 if ((reg < 0x80) && (reg >=0) && (val <= 0xffffffff) && (channel_id >=0) && (channel_id <= 3) )
 410                         snd_ca0106_ptr_write(emu, reg, channel_id, val);
 411         }
 412 }
 413
 414 static void snd_ca0106_proc_i2c_write(struct snd_info_entry *entry,
 415                                        struct snd_info_buffer *buffer)
 416 {
 417         struct snd_ca0106 *emu = entry->private_data;
 418         char line[64];
 419         unsigned int reg, val;
 420         while (!snd_info_get_line(buffer, line, sizeof(line))) {
 421                 if (sscanf(line, "%x %x", &reg, &val) != 2)
 422                         continue;
 423                 if ((reg <= 0x7f) || (val <= 0x1ff)) {
 424                         snd_ca0106_i2c_write(emu, reg, val);
 425                 }
 426         }
 427 }
 428
 429 int __devinit snd_ca0106_proc_init(struct snd_ca0106 * emu)
 430 {
 431         struct snd_info_entry *entry;
 432
 433         if(! snd_card_proc_new(emu->card, "iec958", &entry))
 434                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_iec958);
 435         if(! snd_card_proc_new(emu->card, "ca0106_reg32", &entry)) {
 436                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read32);
 437                 entry->c.text.write = snd_ca0106_proc_reg_write32;
 438                 entry->mode |= S_IWUSR;
 439         }
 440         if(! snd_card_proc_new(emu->card, "ca0106_reg16", &entry))
 441                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read16);
 442         if(! snd_card_proc_new(emu->card, "ca0106_reg8", &entry))
 443                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read8);
 444         if(! snd_card_proc_new(emu->card, "ca0106_regs1", &entry)) {
 445                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read1);
 446                 entry->c.text.write = snd_ca0106_proc_reg_write;
 447                 entry->mode |= S_IWUSR;
 448         }
 449         if(! snd_card_proc_new(emu->card, "ca0106_i2c", &entry)) {
 450                 entry->c.text.write = snd_ca0106_proc_i2c_write;
 451                 entry->private_data = emu;
 452                 entry->mode |= S_IWUSR;
 453         }
 454         if(! snd_card_proc_new(emu->card, "ca0106_regs2", &entry))
 455                 snd_info_set_text_ops(entry, emu, snd_ca0106_proc_reg_read2);
 456         return 0;
 457 }
 458
 459 #endif /* CONFIG_PROC_FS */